DS96-L147-203 CONEXANT [Conexant Systems, Inc], DS96-L147-203 Datasheet
DS96-L147-203
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DS96-L147-203 Summary of contents
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CX81801-7x/8x SmartV.XX Modem Data Sheet Contents 1. Introduction..........................................................................................................................................1-1 1.1 Overview ......................................................................................................................................................................... 1-1 1.2 Applications .................................................................................................................................................................... 1-2 1.3 Features .......................................................................................................................................................................... 1-4 1.3.1 General Modem Features................................................................................................................................ 1-4 1.3.2 SmartDAA Features ........................................................................................................................................ 1-5 1.3.3 Applications.................................................................................................................................................... 1-5 1.4 Technical Overview......................................................................................................................................................... 1-6 1.4.1 General Description ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.4.1 Speed Buffering (Normal Mode) .................................................................................................................... 2-4 2.4.2 Flow Control ................................................................................................................................................... 2-4 2.4.3 Escape Sequence Detection............................................................................................................................ 2-4 2.4.4 BREAK Detection ............................................................................................................................................ 2-4 2.4.5 Telephone Line Monitoring............................................................................................................................. 2-4 2.4.6 Fall Forward/Fallback (V.92/V.90/V.34/V.32 bis/V.32) ................................................................................... 2-4 2.4.7 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.1.2 Serial Interface Configuration Only................................................................................................................. 3-2 3.1.2.1 Serial DTE Interface and Indicator Outputs (PARIF = Low)........................................................ 3-2 3.1.3 Parallel Interface Configuration Only (PARIF = High)..................................................................................... 3-3 3.1.3.1 Parallel Host Bus Interface ......................................................................................................... 3-3 3.1.4 CX81801 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figures Figure 1-1. SmartV.XX Modem Simplified Interface Diagram ............................................................................................ 1-3 Figure 1-2. SmartV.XX Modem Major Interfaces................................................................................................................ 1-3 Figure 2-1. TMIND# Test Results Pulse Cycles ................................................................................................................ 2-12 Figure 3-1. CX81801 Modem Hardware Signals for Parallel Interface ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Tables Table 1-1. SmartV.XX Modem Models and Functions ........................................................................................................ 1-2 Table 1-2. Default Countries Supported.............................................................................................................................. 1-8 Table 2-1. +MS Command Automode Connectivity ............................................................................................................ 2-3 Table 3-1. CX81801 Modem 128-Pin TQFP Pin Signals for Parallel Interface ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 1. Introduction 1.1 Overview The Conexant® SmartV.XX Modem is a full-featured, worldwide, controller-based modem that integrates modem controller (MCU), modem data pump (MDP), 256 KB ROM RAM, and SmartDAA system side device (SSD) ...
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... DS56-L147-206 CX81801-84 SmartV.34 DS28-L147-203 CX81801-72 SmartV.34/S DS28-L147-204 CX81801-72 SmartV.34/LF DS28-L147-206 CX81801-82 SmartV.32bis DS96-L147-203 CX81801-73 SmartV.32bis/S DS96-L147-204 CX81801-73 SmartV.32bis/LF DS96-L147-206 CX81801-83 Notes: 1. Supported functions (Y = Supported; — = Not supported). QC, MOH, PCM Quick connect, Modem-on-Hold, PCM upstream TAM Telephone answering machine (Voice playback and record through telephone line) ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 1-1. SmartV.XX Modem Simplified Interface Diagram PARALLEL HOST BUS OR SERIAL DTE CX81801 INTERFACE Modem 128-Pin TQFP Figure 1-2. SmartV.XX Modem Major Interfaces CX81801 Modem 128-Pin TQFP SmartDAA Interface Paralle Host Microcontroller Modem Data ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 1.3 Features 1.3.1 General Modem Features • Data modem − − − • Data compression and error correction − − − • Fax modem send and receive rates up to 14.4 kbps − − • ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet • Full-duplex speakerphone (FDSP) mode using optional CX20442 Voice Codec (S models) − − − − − • Built-in host/DTE interface − − • Downloadable architecture • Direct mode (serial DTE interface) • Flow control ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 1.4 Technical Overview 1.4.1 General Description Modem operation, including dialing, call progress, telephone line interface, telephone handset interface, optional voice/speakerphone interface, and host interface functions are supported and controlled through the V.250, V.251, and V.253-compatible ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet speeds kbps. When PCM upstream is disabled, data transmission supports sending data at line speeds up to V.34 rates. This mode can fallback to V.34 mode and to lower rates as dictated ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 1-2. Default Countries Supported Country Australia Austria Belgium Brazil China Denmark Finland France Germany Hong Kong India Ireland Italy Japan Korea Malaysia Mexico Netherlands Norway Poland Portugal Singapore South Africa Spain Sweden Switzerland Taiwan ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 1.4.3.5 Speakerphone Mode (S Models) S models include additional telephone handset, external microphone, and external speaker interfaces which support voice and full-duplex speakerphone (FDSP) operation. Hands-free full-duplex telephone operation is supported in Speakerphone Mode under ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet The CX81801 optionally connects to external OEM-supplied ROM/flash ROM and RAM over a non-multiplexed 19-bit address bus and 8-bit data bus. 1.5.2 Digital Isolation Barrier The OEM-supplied Digital Isolation Barrier (DIB) electrically DC isolates the ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Data Mode Operation. Data functions operate in response to the AT commands when +FCLASS=0. Default parameters support U.S./Canada operation. Fax Mode Operation. Facsimile functions operate in response to fax class 1 commands when +FCLASS=1 or ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 1-12 This page is intentionally blank. Conexant 102199B ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2. Technical Specifications 2.1 Serial DTE Interface Operation 2.1.1 Automatic Speed/Format Sensing Command Mode and Data Mode. The modem can automatically determine the speed and format of the data sent from the DTE. The modem ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.2 Parallel Host Bus Interface Operation Command Mode and Data Mode. The modem can operate at rates up to 230.4 kbps by programming the Divisor Latch in the parallel interface registers if supported by communications ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.3.7 Billing Protection When the modem goes off-hook to answer an incoming call, both transmission and reception of data are prevented for 2 seconds (data modem seconds (fax adaptive answer) to allow transmission ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.4 Data Mode The modem enters data mode when a telephone line connection has been established between modems and all handshaking has been completed. 2.4.1 Speed Buffering (Normal Mode) Speed buffering allows a DTE to ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.4.7 Retrain The modem may lose synchronization with the received line signal under poor or changing line conditions. If this occurs, retraining may be initiated to attempt recovery depending on the type of connection. The ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.5.2 Quick Connect The quick connect function enables the modem to shorten the connect time of subsequent calls to a server supporting quick connect. The quick connect feature is supported by the +PQC command. 2.5.3 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.6.5 MNP 5 Data Compression MNP 5 data compression mode, enabled by the %Cn command, operates during an MNP connection. In MNP 5, the modem increases its throughput by compressing data into tokens before transmitting ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.7.3 Remote Hangup Detection The Remote Hangup Detection feature will cause the modem to go back on-hook and respond with the message “LINE REVERSAL DETECTED” during a data connection when the remote modem is disconnected ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Received analog mono audio samples are converted to digital form and formatted into 8- bit unsigned linear PCM format for reading by the host. AT commands control the bit length and sampling rate. Concurrent DTMF/tone ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 2.12 Full-Duplex Speakerphone (FDSP) Mode (S Models) The modem operates in FDSP mode when +FCLASS=8 and +VSP=1 (Section 2.10.7). In FDSP Mode, speech from a microphone or handset is converted to digital form, shaped, and ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet • Blacklist parameters. The modem can operate in accordance with requirements of individual countries to prevent misuse of the network by limiting repeated calls to the same number when previous call attempts have failed. Call ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 2-1. TMIND# Test Results Pulse Cycles Internal RAM Fails Pulse Cycle 0 Modem Device Fails 0 2.16 Low Power Sleep Mode Sleep Mode Entry. The modem enters the low power sleep mode when no ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3. Hardware Interface 3.1 CX81801 Modem Hardware Pins and Signals 3.1.1 Common to Parallel and Serial Interface Configurations 3.1.1.1 LSD Interface (Through DIB) The DIB interface signals are: • Clock and Power Positive (PWRCLKP); output ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.1.1.5 External Bus Interface The external bus optionally connects to OEM-supplied external memory: • (512K x 8) ROM/flash ROM • (128K x 8) RAM The non-multiplexed external ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.1.3 Parallel Interface Configuration Only (PARIF = High) A 16550A UART-compatible parallel host bus interface is selected when the PARIF input is high. 3.1.3.1 Parallel Host Bus Interface The parallel host interface signals are: • ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-1. CX81801 Modem Hardware Signals for Parallel Interface (PARIF = High) 114 CRYSTAL XTLI 115 CIRCUIT XTLO 113 CLKIN 61 NC CLKOUT 49 NC XCLK 111 NC DV1TP 240K 57 +3.3V LPO 47 NOXYCK ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-2. CX81801 Modem 128-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) 102199B CX81801 Parallel Interface (PARIF Pin = High) Conexant 102199_004 3-5 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-1. CX81801 Modem 128-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) Pin Signal Label I/O I/O Type 1 HD5 (PC5) I/O Ith/Ot8 2 VDD P PWR 3 HD6 (PC6) I/O Ith/Ot8 4 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-1. CX81801 Modem 128-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) (Continued) Pin Signal Label I/O I/O Type 47 NOXYCK I Itpu 48 GND G GND 49 XCLK O It/Ot2 50 IASLEEP ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-2. CX81801 Modem Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin XTLI, 114, XTLO 115 CLKIN 113 CLKOUT 61 DV1TP 111 PARIF 5 LINE_SEL (PE7) 23 STPMODE# (PD3) 9 NMI# 117 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-2. CX81801 Modem Pin Signal Definitions for Parallel Interface (PARIF = High) (Continued) Label Pin DSPKOUT 98 PWRCLKP 96 PWRCLKN 97 DIB_DATAP 93 DIB_DATAN 94 A0-A9, 71-77, 79-81, A10-A15, 84, 86-89, 91, A16 (PB0), ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-2. CX81801 Modem Pin Signal Definitions for Parallel Interface (PARIF = High) (Continued) Label Pin HCS# (PD4) 11 HWT# (PD5) 12 HRD# (PD6) 13 HINT (PB7) 109 HA0-HA2 6-8 (PD0-PD2) HD0-HD7 122-123, 125- (PC0-PC7) ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-2. CX81801 Modem Pin Signal Definitions for Parallel Interface (PARIF = High) (Continued) Label Pin VOICE# (PE1) 16 HS_LCS (PE4) 19 TESTP 110 XCLK 49 PHS2 121 SR4RIN 45 PA2 27 PA6 32 PD7 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-3. CX81801 Modem Hardware Signals for Serial Interface (PARIF = Low) 114 CRYSTAL XTLI 115 CIRCUIT XTLO 113 CLKIN 61 NC CLKOUT 49 NC XCLK 111 NC DV1TP 240K 57 +3.3V LPO 47 NOXYCK ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-4. CX81801 Modem 128-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) 102199B CX81801 Serial Interface (PARIF Pin = Low) Conexant 102199_006 3-13 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-3. CX81801 Modem 128-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) Pin Signal Label I/O I/O Type 1 RI# (PC5) O Ith/Ot8 2 VDD P PWR 3 TM# (PC6) O Ith/Ot8 4 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-3. CX81801 Modem 128-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) (Continued) Pin Signal Label I/O I/O Type 47 NOXYCK I Itpu 48 GND G GND 49 XCLK O It/Ot2 50 IASLEEP ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-4. CX81801 Modem Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin XTLI, 114, XTLO 115 CLKIN 113 CLKOUT 61 DV1TP 111 PARIF 5 LINE_SEL (PE7) 23 STPMODE# (PD3) 9 NMI# 117 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-4. CX81801 Modem Pin Signal Definitions for Serial Interface (PARIF = Low) (Continued) Label Pin DSPKOUT 98 PWRCLKP 96 PWRCLKN 97 DIB_DATAP 93 DIB_DATAN 94 A0-A9, 71-77, 79-81, A10-A15, 84, 86-89, 91, A16 (PB0), ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-4. CX81801 Modem Pin Signal Definitions for Serial Interface (PARIF = Low) (Continued) Label Pin TXD# (PA2) 27 RXD# (PA6) 32 CTS# (PC1) 123 DSR# (PC0) 122 RLSD# (PC2) 125 TM# (PC6) 3 RI# ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-4. CX81801 Modem Pin Signal Definitions for Serial Interface (PARIF = Low) (Continued) Label Pin V.24 (EIA/TIA-232-E) DTE Serial Interface (Continued) RXCLK# (P_PB01) 51 TXCLK# (P_PA04) 54 XTCLK# (GP00) 52 AAIND# (PC4) 127 TMIND# ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-4. CX81801 Modem Pin Signal Definitions for Serial Interface (PARIF = Low) (Continued) Label Pin VOICE# (PE1) 16 HS_LCS (PE4) 19 TESTP 110 XCLK 49 S4RIN 45 PHS2 121 PC3 126 PD1 7 PD2 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-5. CX81801 Modem I/O Type Definitions I/O Type Idd/Odd Digital input/output, DIB data transceiver Ix/Ox I/O, wire Digital input, +5V tolerant/ Digital output, 2 mA, Z INT = 120 Ω It/Ot2 Digital input, +5V ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.2 CX20493 LSD Hardware Pins and Signals 3.2.1 CX20493 LSD Signal Summary 3.2.1.1 Smart Modem Interface (Through DIB) The DIB interface, power, and ground signals are: • Clock (CLK, pin 26); input • Digital Power ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.2.1.4 General Purpose Input/Output There is one unassigned general purpose input/output pin: • General Purpose Input/Output 1 (GPIO1, pin 1); input/output 3.2.1.5 No Connects Three pins are not used: • No Connect 1 (NC1, pin ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-6. CX20493 LSD 28-Pin QFN Pin Signals Table 3-7. CX20493 LSD 28-Pin QFN Pin Signals Pin 3-24 CX20493 Signal Label ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-8. CX20493 LSD Hardware Signal Definitions Label Pin I/O AVdd 2 PWR AGnd 6 AGND_LSD VRef 4 REF VRef 4 REF Vc 3 REF PWR+ 7 PWR DVdd 24 PWR DGnd 23 DGND_LSD PADDLE ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-8. CX20493 LSD Hardware Signal Definitions (Continued) Label Pin I/O RAC1 21 I TAC1 20 I RAC2 19 I TAC2 18 I EIC 11 O TRDC 12 I EIO 17 O DC_GND 15 GND ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-9. CX20493 LSD GPIO DC Electrical Characteristics Parameter Input Voltage Input Voltage Low Input Voltage High Output Voltage Low Output Voltage High Input Leakage Current Output Leakage Current (High Impedance) GPIO Output Sink Current ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.3 CX20442 VC Hardware Pins and Signals (S Models) 3.3.1 CX20442 VC Signal Summary Microphone and analog speaker interface signals, as well as telephone handset/headset interface signals are provided to support functions such as speakerphone ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.3.2 CX20442 VC Pin Assignments and Signal Definitions VC 32-pin TQFP hardware interface signals are shown by major interface in Figure 3-7, are shown by pin number in Figure 3-8, and are listed by pin ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-7. CX20442 VC Hardware Interface Signals 1 IASLEEP SLEEP 4 DRESET# POR 19 M_CLK M_CLKIN 21 V_SCLK M_SCK 23 CX81801 V_STROBE M_STROBE 20 V_TXSIN M_TXSIN 22 V_RXOUT M_RXOUT 18 V_CTRL M_CNTRLSIN 17 +3.3V VDD ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-11. CX20442 VC 32-Pin TQFP Pin Signals Pin Signal Label I/O 1 SLEEP I 2 M_DIG_SPEAKER O 3 M_SPKR_OUT O 4 POR I 5 MAVDD P 6 MAVSS ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-12. CX20442 VC Pin Signal Definitions Label Pin VDD 17, 25 MAVDD 5 VSS 28 MAVSS 6 VSUB 27 POR 4 SET3V_BAR2 26 SLEEP 1 M_CLKIN 19 M_SCK 21 M_CNTRL_SIN 18 M_STROBE 23 M_TXSIN ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-15. CX20442 VC Pin Signal Definitions (Continued) Label Pin VREF M_DIG_SPEAKER 2 M_LINE_OUTM 10 M_RELAYA 24 M_RELAYB 16 M_MIC_BIAS 15 M_ACT90 29 M_1BIT_OUT 30 D_LPBK_BAR Notes: ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-14. CX20442 VC Analog Electrical Characteristics Signal Name Type M_LINE_IN, I (DA) M_MIC_IN M_LINE_OUTP O (DD) M_SPKR_OUT O (DF) Test Conditions unless otherwise stated: VDD = +3.3 ± 0.3 VDC; MAVDD = +3.3 ± ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.4 Electrical and Environmental Specifications 3.4.1 Operating Conditions, Absolute Maximum Ratings, and Power Requirements The operating conditions are specified in Table 3-15. The absolute maximum ratings are listed in Table 3-16 for the CX81801, Table ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 3-18. CX20442 Absolute Maximum Ratings Analog Supply Voltage Digital Supply Voltage Storage Temperature Range Digital Inputs Analog Inputs DC Input Clamp Current DC Output Clamp Current Static Discharge Voltage (25 °C) Latch-up Current (25 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.4.2 Interface and Timing Waveforms 3.4.2.1 External Memory Bus Timing The external memory bus timing is listed in Table 3-20 and illustrated in Figure 3-9. Table 3-20. Timing - External Memory Bus Symbol Parameter t ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-9. Waveforms - External Memory Bus C2* A[18:0] ES#** READ# D[7: Internal Phase 2 clock. ** ES# = RAMSEL# or ROMSEL#. C2* A[18:0] ES#** WRITE# D[7: Internal Phase ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.4.2.2 Parallel Host Bus Timing The parallel host bus timing is listed in Table 3-21 and illustrated in Figure 3-10. Table 3-21. Timing - Parallel Host Bus Symbol Parameter t Address Setup AS t Address ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 3-10. Waveforms - Parallel Host Bus HA[2-0] HCS# HRD# HWT# HD[7-0] HA[2-0] HCS# HRD# HWT# HD[7-0] 3- DRH a. Host Read ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.4.2.3 Serial DTE Interface The serial DTE interface waveforms for 4800 and 9600 bps are illustrated in Figure 3-11. Figure 3-11. Waveforms - Serial DTE Interface TXCLK 4800 BPS TXD 4800 BPS TXCLK 9600 BPS ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 3.5 Crystal Specifications Crystal specifications are listed in Table 3-22. Table 3-22. Crystal Specifications Frequency Calibration Tolerance Frequency Stability vs. Temperature Frequency Stability vs. Aging Oscillation Mode Calibration Mode Load Capacitance, C Shunt Capacitance, C ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 102199B This page is intentionally blank. Conexant 3-43 ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 4. Package Dimensions The 128-pin TQFP package dimensions are shown in Figure 4-1. The 32-pin TQFP package dimensions are shown in Figure 4-2. The 28-pin QFN package dimensions are shown in Figure 4-3. 102199B Conexant ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 4-1. Package Dimensions - 128-Pin TQFP PIN 1 REF DETAIL A 4 DETAIL ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 4-2. Package Dimensions - 32-pin TQFP PIN 1 REF DETAIL A 102199B D1 DETAIL A Dim. Min 0. ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Figure 4-3. Package Dimensions - 28-Pin QFN Pin 1 Identifier 2 3 TOP VIEW TERMINAL TIP NOTES: 1. DIMENSION b APPLIES TO PLATED TERMINAL AND IS ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5. Parallel Host Interface The modem supports a 16550A interface in parallel interface versions. The 16550A interface can operate in FIFO mode or non-FIFO mode. Non-FIFO mode is the same as 16450 interface operation. FIFO ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Table 5-1. Parallel Interface Registers Register Register No. Name 7 Scratch Register (SCR) 6 Modem Status Register (MSR) Data Carrier 5 Line Status Register (LSR) RX FIFO 4 Modem Control Register (MCR) 3 Line Control ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2 Register Signal Definitions 5.2.1 IER - Interrupt Enable Register (Addr = 1, DLAB = 0) The IER enables five types of interrupts that can separately assert the HINT output signal (Table 5-2). A selected ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.2 FCR - FIFO Control Register (Addr = 2, Write Only) The FCR is a write-only register used to enable FIFO mode, clear the RX FIFO and TX FIFO, enable DMA mode, and set the ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.3 IIR - Interrupt Identifier Register (Addr = 2) The Interrupt Identifier Register (IIR) identifies the existence and type five prioritized pending interrupts. Four priority levels are set to assist interrupt processing ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.4 LCR - Line Control Register (Addr = 3) The Line Control Register (LCR) specifies the format of the asynchronous data communications exchange. Bit 7 This bit must be set access ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.5 MCR - Modem Control Register (Addr = 4) The Modem Control Register (MCR) controls the interface with the modem or data set. Bit 7-5 Always 0. Bit 4 When this bit is set to ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet Bit 5 This bit, when set, indicates that the TX Buffer is empty and the modem can accept a new character for transmission. In addition, this bit causes the modem to issue an interrupt to ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.7 MSR - Modem Status Register (Addr = 6) The Modem Status Register (MSR) reports current state and change information of the modem. Bits 4-7 supply current state and bits 0-3 supply change information. The ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.2.10 Divisor Registers (Addr = 0 and 1, DLAB = 1) The Divisor Latch LS (least significant byte) and Divisor Latch MS (most significant byte) are two read-write registers at locations 0 and 1 when ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5.3.2 Receiver Character Timeout Interrupts When the FIFO mode is enabled (FCR0 = 1) and receiver interrupt (Receiver Data Available) is enabled (IER0 = 1), receiver character timeout interrupt operation is as follows ...
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CX81801-7x/8x SmartV.XX Modem Data Sheet 5-12 This page is intentionally blank. Conexant 102199B ...
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NOTES ...
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General Information: U.S. and Canada: (888) 855-4562 International: (732) 345-7500 Headquarters – Red Bank 100 Schulz Drive Red Bank, NJ 07701 ...